Automatic cattle-guard.



KKKKKKKKKKK N.

AUTOMATIC CATTLE GUARD.

*xl/wily f' v 'i557 Vg, $9

G. CARLSON.

AUTOMATIC CATTLE GUARD.

APPLICATION FILED FEB. 25. IQIa.

Pmnd (IGI. 24,1916.

2 SHEETS-SHEET 2.

INVENTOR IMQ WITNESSES ATTORNEY (ErUS'lA CARLSON, 0F SPOKAN, WASHINGTON.

AUTOMATIC CATTLE-GUARD.

To all whom it may concern.'

Be it known that I, GUsT CARLSON, a citi-y zen of the United States, residing at Spokane, in the county of Spokane and State of Washington, have invented certain newy and.

useful Improvements in Automatic Cattle- Guards, of which the following is a specification. A

An object of my invention isto provide a cattle guard which is so arranged that it may be mounted adjacent a railroad 4track and at the sides of a road or pathwayand which will interpose bars ora gate across the track to prevent the trespass of cattle or other animals onto the right of way or track of the railroad when the animals walk or step upon tread pieces mounted between the ties on that side of the guard structure'adjacent the road or pathway.

A further object .is to so construct and mount the parts that in normal conditions no part of the guard structure is closely adjacent to the rails or is permitted to project over or upon the trackway proper and also to provide means by which the parts will be almost instantlyreturned to the 'inoperative relation yas the animal movesffrom the operating tread and the weight thereupon is released. y

With the above and other objects in view, my invention consists in certain novel feaf tures of construction andl combinations of parts which will be hereinafter set forth in connection with the accompanying drawings and then pointed out in the claims'.

In the dra'vvingsz--Figure 1 is a'view in perspective of a section of the trackway with my invention mounted inv an operative relation. Fig; 2 is a view in front elevation of the structure with the tread piece shown in the depressed position and withthe parts consequently moved to the operative relation. Fig. 3 is a transverse sectional view to better illustrate the mounting and operating parts.

In the mounting of my improved cattle guard, it is preferable that certain of the ties by which the rails l and 2 of the road are' supported, and which ties are here designated as 3, 4, and 5to be made of a greater length than the ordinary supporting ties 6,

' which are mounted in the road bed, it being a purpose thatthese ties 3, 4, and shall presenta projecting end at each side of the track,`which projecting ends shall act as a Specification of Letters Patent.

Patented oet. 24, 191e.

Application filed February 25, 1916. Serial No. 80,504.

supporting structure for the mechanism to be hereinafter set forth.

A Apair of Vsupporting frame members 7 and 8 are mounted on the projecting ends of the ties 3 and 4 at spaced apart points and at one side of the rails forming the track, and a pairv of similar supporting members 9 and 10 are mounted at the opposite side of the track in a similar relation on the remaining projecting ends of the ties 3 and 4. The supporting frame members 7, 8, 9, and 10 are substantially duplicates, and these frame members comprise the upright supports 11 and 12 which are connected across their up per ends by a continuation of the metal and have ythe yoke portions 13 formed in this connecting portion. It is preferable that these supporting frame members be constructed of cylindrical bar or tube metal bent to the proper shape, and amounting on the ties 3 and 4 maybe accomplished by means of the socket members 14, or in any other desired manner, the essential point of the mounting being that the `supporting frame members must be held in a substantially rigid relation. f A i Grate members 15 and 16 are constructed to comprise the upper bars y17 and V18 and the lower bars 19 and` 20. The gate member 15 is supported by having the topbar 17 thereof received and cradledin the yokes 13 of the supporting frame members 7 and 8, and the gate member 16 has the top bar 18 mounted within the yoke portion 13 of the supporting frame members 9 and 107 the mounting of thesetwo gate members being such that the sliding movement of the same is permitted to Y a position of projection over or beyondthe rails 1 and 2 of the track. As is better illustrated in Fig. 2, the gate member 15 has the lower ,bar 19 thereof shaped to provide the inner shoulder 21 and an louter,v shoulder 22, and the lowerhbar 20 of the gate member 16 is shaped in -a like manner to provide' theV inner shoulder 23 andan outer shoulder`24. A gate extending member 25 is mounted in the bearing 26 at a point adjacent the mounting of the supporting frame member 8 to be capable of swinging movement and is shaped tov fit aroundthe lower bar 19 of the gate member 15V against the formation of the shoulder 22, andthe withdrawing member 27 is mounted in the bearing 28 adjacent the and are providedwith the crank operat-y ingarms 34wand 35 and the gate withdrawing or opening members 27 and 32 and the crank arm extensionsBG and 37 thereof disposed to lierat right angles to the main extent ofthe uprights of these members, the crank arm portions being extended across in thel crankrods 39 and 40 which terminate at their ends in the crank arms'41 and 42 disposed in the same relation as and corresponding to the crank `arms 36 and 37, these latter crank arms beingmounted in the'bearings v43' and'44 provided on the extended end of the tie 5.

i VYto `Operating arms 45-and 46 are connected with-the crank arms 36 and 37 and links 47 and 48 establish an operating connectionbetween the operating arm 45 and the crank arm-*34 and betweenthe operating arml 46 and the crank arm 35. Y

The spring retaining members 49 and 50 arel mounted on the tie 4 andihave the free ends thereof llooped to be received around one of the upright bars of the members'27 and f32, these spring Yretainingmembers being adapted 'to normally hold the members 27 andf2'y in a-relation that the bearing portions'21 and23 areengaged thereby, and the gate members 15 and 16'are held in the inoperative or openposition; A plurality of tread bars 51 are disposed across beneath the rails 1 and 2, these tread bars being preferably placed parallel withthe'extent of the ties andk spaced perhaps fromLone and onelhalf to twoand one-half inches apart so that Vas an animal walking on the track on that side adjacent `the road or pathway comes into proximity to the mounting of the supporting frame members7 the feet will enf gage gvwith these tread members. Thetread members 51 have` the elongatedslotted openings 52 at thejends thereof -iand -the bars 39 and 40 are received` through these elongated 'slotted openings" so that as 'the' animal mav steplupon one or several of thesaid barsv 51,' the depre'ssingof the same will causey theparts to be swung to; the relation shown in Fig. 2 where the gate bars are extended across the track to close access to the right of Vway of the railroad.V As the animal again moves `from the tread bars, the spring members 49 and 50 will restorey the parts to i' the relation shown in Fig. n1 and thetrack is then free. To make the bars 17 and 18 and also the bars 19 and 2() more secure, an eye 53 is formed on the end of the bar 18 to which the `free end of the bar 17 tits as the gate members are closed, and a similar eye member 54 is formed on the end of the bar 19 to receive the free end of the bar 20.

While I have herein shown and described only oneV specic form of my invention, it will be understood that variations might be resorted toin the manner of supporting and mounting'the structure, `in the formation and construction.v of the tread-bars, and in the construction and arrangement of other vof the parts without departing `from the spirit and scope of the invention, and hence I do not wish to be limited to the exact disclosure except for such points as may be set forth in the claims.

` I claim 1. An automatic cattle guard comprising a pair .of supporting frame members mounted in a spaced relation and in` alinement on each side of ai track, a gatemember supported and carried by each pair of support- `ing frame members and arranged to be capable of endwise movement to` a posltlon ofV closing across the track, springs mounted to bear against saidV gate members and by which the gates arel normally vslidendwise tobe held in an open relation,fand tread membersarranged and connected to actuate said gate members to move the same against the action of the springs to a position of-exan animal trespasses on the track adjacent the mounting of the guards tovcause the gate to be moved to a'position of extensionV .across the track.

3. An automatic cattle guardcomprising supporting frame members mounted on each side of a track, gates comprising upper and lower barsl mounted in said supporting frame members toV be capable of sliding movement into and out of operative relation and the lower bar of each of said gates provided with a pair of shoulders, and means arranged atpeach side of the track to engage' with one of said shoulders to move the gates to 'an' operative position. v

4. Anvautomatic cattlev guard comprising supporting'frame members mounted on each side of atrack, gates comprising upper and lower bars mounted in said supporting frame members to @be capable of sliding lio movement into and out of operative relation and the lower bar of each of said gates provided with a pair of shoulders, means ar ranged at each side of the track to engage with one of said shoulders to move the gates to an operative position,`and means engaged with the remainingshoulder of each of the gate members to normally hold the same in an inoperative position. Y

5. An automatic cattle guard comprising supporting frame members mounted on each side of a track, gates comprising upper and lower bars mounted in said supporting frame members to be capable of sliding movement into and out of operative relation and the lower bar of each of said gates provided with a pair of shoulders, means arranged at each side of the track to engage with one of said shoulders to move the gates to an operative position, means engaged with the remaining shoulder of each of the kgate members to normallyT hold the same in an inoperative position, tread members mounted adjacent the track to be depressed by an animal trespassing thereon, and aV In testimony whereof I aHiX my signature 30 in presence of two witnesses.

GUST CARLSON.

Witnesses:

T. F. GERAGHTY, W. A. WYER,

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of latents, Washington, D. C. 

